JPH0116128B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fishing line guide for a fishing rod and a method for manufacturing the same.

In conventional fishing line guides for fishing rods, both the inclined support part and the mounting piece attached to the fishing rod are made of metal in order to increase its strength. Either it is formed integrally with an outer ring made of a wear-resistant material, or it is engaged with a middle layer ring made of synthetic resin for cushioning and is sandwiched between the outer rings, as seen in Japanese Utility Model Publication No. 55-2779. is the current situation.

However, this method of forming the fishing rod attachment part out of metal impedes the flexibility of the fishing rod, causing the fishing rod to become unstable. There is a defect in the protruding parts on both sides that can cause fishing lines to get tangled or get caught on other objects.

The present invention improves these defects by integrally and continuously forming the inclined support part and the mounting piece attached to the fishing rod with the middle layer ring using thermoplastic synthetic resin mixed with reinforcing fibers, without impairing the flexibility of the fishing rod. The present invention relates to a fishing line guide having sufficient strength and durability, and a method for manufacturing the same.

To explain an embodiment of the present invention with reference to the drawings, there is a gap between an inner ring 1 made of a hard wear-resistant material such as ceramic or metal and an outer ring 2 made of a hard wear-resistant material such as stainless steel or other metal. Middle ring of thermoplastic synthetic resin mixed with reinforcing fibers 3
is provided, and a downwardly inclined support portion 4 and a horizontal mounting piece 5 extending thereto are continuously integrated at the front and rear portions of both sides of the lower part of the middle ring 3 so as to cover the outer ring 2. It is formed.

There are two ways for the inclined support portion 4 to cover the outer ring 2: one is to cover the entire lower side of the outer ring 2 as shown in Fig. 3, and the other is to cover only the lower both sides of the ring as shown in Fig. In some cases, the outer ring 2 is covered, but in both cases, the outer ring 2 is integrally fixed.

Further, as the thermoplastic synthetic resin, polyamide resin, polycarbonate resin, polyacetal resin, etc. are used, and glass fiber with a diameter of 5 to 10 μm or carbon fiber with a length of 0.5 to 4 mm is used alone or in combination to make a synthetic resin. 10 to 50% by weight of synthetic resin, or silicon carbide with a diameter of 0.1 to 2 μ and a length of 50 to 200 μ, or silicon nitrogen with a diameter of 0.1 to 2 μ and a length of 0.5 to 1 mm. Mix 5 to 20% by weight.

Next, the manufacturing method of the present invention will be explained. After fitting and placing the inner ring 1 and the outer ring 2 concentrically on the lower mold 6,
The upper mold 7 and the side slide molds 8 and 9 are closed together, and the inner and outer rings 1 and 2 formed by these molds are
A resin injection hole is formed in the gap part 10 and the inclined support part forming cavity 11 which communicates therewith with the mounting piece forming cavity 12 at the junction of the slide molds 8 and 9 and within a plane including the inner ring 1 and the outer ring 2. After injecting and molding the thermoplastic synthetic resin 14 mixed with the reinforcing fibers from 13,
A fishing line guide formed by dividing upper and lower molds 6, 7 and slide molds 8, 9 is taken out.

In the present invention, the middle layer ring that fixes the inner ring and the outer ring, the inclined support part and the mounting piece for attaching to the fishing rod are made of thermoplastic synthetic resin mixed with reinforcing fibers, and are made of thermoplastic synthetic resin mixed with reinforcing fibers, and are continuous so as to cover the outer ring. Since the fishing line guide is formed using a thermoplastic resin, it does not hinder the flexibility of the fishing rod like conventional metal mounting legs, and the fishing line guide can be attached to the fishing rod without losing its shape by utilizing the flexibility of the thermoplastic synthetic resin. In addition, the strength of the thermoplastic synthetic resin is reinforced with reinforcing fibers, and the outer ring is covered with an inclined support part and is integrated with this, so it has sufficient resistance to external shocks and pressing forces. It maintains durability and reliably prevents the outer ring from coming off. Furthermore, the inclined support part extends from both sides of the fishing line guide part in an inclined manner in the front and back direction to form a mounting piece, so the guide part can be attached to both the front and rear sides. The fishing line guide part is supported stably and firmly against loads from any direction, and the fishing line does not get tangled or caught on other objects, and the weight of the fishing line guide itself is reduced, making it easier to hold the fishing line. Fishing lines can be guided without impairing functionality.

In addition, in the present invention, the inner ring and outer ring made of hard abrasion resistant material are placed in a split mold and are integrally molded by injection molding of thermoplastic synthetic resin mixed with reinforcing fibers. The guide can be manufactured easily and mass-produced, and in particular, the resin injection hole is provided in the lower part of the plane containing the inner ring and the outer ring in the split mold, so that the thermoplastic synthetic resin with reinforcing fibers is evenly applied to each part. It is possible to manufacture fishing line guides that are filled smoothly, have good formability, and are of good quality, and even if sprue marks (burrs) remain, there is no risk of the fishing line coming into contact with the lower part between the front and rear inclined support parts, so there is no risk of the fishing line getting tangled. It also has excellent features such as good alignment in terms of appearance.

[Brief explanation of drawings]

Fig. 1 is a slope view of the present invention, Fig. 2 is a longitudinal sectional front view of the same, Fig. 3 is a longitudinal sectional side view of the same, Fig. 4 is a longitudinal sectional front view of another embodiment, and Fig. 5 is a longitudinal sectional side view of the same. FIG. 6 is an exploded perspective view of the mold of the present invention, and FIG. 7 is a cross-sectional plan view during molding. 1... Inner ring, 2... Outer ring, 3... Middle ring,
4... Inclined support part, 5... Mounting piece, 6... Lower mold,
7...Upper mold, 8,9...Slide mold, 10...Gap portion, 11...Slanted support portion forming cavity, 12...Mounting piece forming cavity, 13...Resin injection hole, 14...Thermoplastic synthesis resin.

Claims (1)

[Scope of Claims] 1. A middle ring of thermoplastic synthetic resin mixed with reinforcing fibers is formed between an inner ring and an outer ring made of a hard wear-resistant material such as metal or ceramics, and at the front and rear of both sides of the middle ring. A fishing line guide for a fishing rod, characterized in that an inclined support part and a mounting piece extending from the tip of each of the inclined support parts are integrally and continuously formed so as to cover an outer ring. 2. An inner ring and an outer ring made of a hard wear-resistant material such as metal or ceramics are placed concentrically and spaced apart in an injection mold that is formed to be freely divisible, and the inner ring and outer ring in the mold are A thermoplastic synthetic resin mixed with reinforcing fibers is injected into the gap between the inner ring and the outer ring, and into the cavity that can form the inclined support part and mounting piece that are continuous with the gap between the inner ring and the outer ring. A method for manufacturing a fishing line guide for a fishing rod, characterized by integrally molding a middle layer ring, an inclined support part, and a mounting piece.